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Statements

Subject Item
n2:RIV%2F60461373%3A22310%2F06%3A00016953%21RIV07-GA0-22310___
rdf:type
skos:Concept n14:Vysledek
dcterms:description
The influence of the size and nature of counter-ions on the permeability of polypyrrole films to hydrogen was tested. The permeabilities were determined using the method of limiting currents on a Pt rotating disc electrode with subsequent Koutecky-Levich analysis. The work has focused mainly on the influence of the anion size, but the effect of polymeric anion hydrophilicity was also considered. Attention was especially paid to Nafion as a counter-ion. It was found that Nafion markedly increases polypyrrole permeability. The film growth was followed by means of EQCN, which allowed determination of the polypyrrole film densities. The influence of the size and nature of counter-ions on the permeability of polypyrrole films to hydrogen was tested. The permeabilities were determined using the method of limiting currents on a Pt rotating disc electrode with subsequent Koutecky-Levich analysis. The work has focused mainly on the influence of the anion size, but the effect of polymeric anion hydrophilicity was also considered. Attention was especially paid to Nafion as a counter-ion. It was found that Nafion markedly increases polypyrrole permeability. The film growth was followed by means of EQCN, which allowed determination of the polypyrrole film densities. Byl testován vliv velikosti a charakteru protiontů na permeabilitu polypyrrolových filmů pro vodík. Permeability byly stanoveny metodou limitních proudů na rotující diskové elektrodě a následnou Kouteckého-Levičovou analýzou. Práce se zaměřila především na vliv velikosti intu, ale byl studován také vliv hydrofility polymerního aniontu. Zvláštní pozornost byla věnována Nafionu jako protiontu. Bylo zjištěno, že Nafion výrazně zvyšuje permebilitu polypyrrolu. Růst filmu byl sledován EQCN, to umožnilo stanovení hustot polypyrrolových filmů.
dcterms:title
Influence of counter-ions on the permeability of polypyrrole films to hydrogen Vliv protiontů na permeabilitu polypyrrolového filmů pro vodík Influence of counter-ions on the permeability of polypyrrole films to hydrogen
skos:prefLabel
Vliv protiontů na permeabilitu polypyrrolového filmů pro vodík Influence of counter-ions on the permeability of polypyrrole films to hydrogen Influence of counter-ions on the permeability of polypyrrole films to hydrogen
skos:notation
RIV/60461373:22310/06:00016953!RIV07-GA0-22310___
n3:strany
703-710
n3:aktivita
n7:P
n3:aktivity
P(GA104/02/0664)
n3:cisloPeriodika
6
n3:dodaniDat
n9:2007
n3:domaciTvurceVysledku
n4:6051782 n4:2059428
n3:druhVysledku
n10:J
n3:duvernostUdaju
n18:S
n3:entitaPredkladatele
n12:predkladatel
n3:idSjednocenehoVysledku
479352
n3:idVysledku
RIV/60461373:22310/06:00016953
n3:jazykVysledku
n13:eng
n3:klicovaSlova
Counter-ion; Nafion permeability; polypyrrole; proton exchange membrane fuel cell (PEM FC)
n3:klicoveSlovo
n11:Nafion%26%2361650 n11:polypyrrole n11:Counter-ion n11:proton%20exchange%20membrane%20fuel%20cell%20%28PEM%20FC%29 n11:permeability
n3:kodStatuVydavatele
NL - Nizozemsko
n3:kontrolniKodProRIV
[0368E8532DDC]
n3:nazevZdroje
Journal of Applied Electrochemistry
n3:obor
n16:CG
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
2
n3:projekt
n17:GA104%2F02%2F0664
n3:rokUplatneniVysledku
n9:2006
n3:svazekPeriodika
36
n3:tvurceVysledku
Bouzek, Karel Holzhauser, Petr
s:issn
0021-891X
s:numberOfPages
7
n15:organizacniJednotka
22310